According to police, the alleged intruder wasn’t carrying a weapon, and the incident is not seen as related to any extremist threat.

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He was held on suspicion of trespassing at around 2 a.m. on Wednesday by specialist royal police officers, the Metropolitan police said.

“The 22-year-old man was arrested at approximately 2 a.m. on Wednesday, 10 July, by officers from the Met’s royalty and specialist protection command after he climbed over the front gates at Buckingham Palace,” a Metropolitan spokeswoman said.